Home / 15,555.75-21,466.94-9,967.11

Finding the Fourth Proportional to 15,555.75, 21,466.94 and 9,967.11

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Solution

The fourth proportional to 15,555.75, 21,466.94 and 9,967.11 is: 13,754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.75 : 21,466.94 = 9,967.11 : x
  2. Step 2: Convert to fraction form
    15,555.75/21,466.94 = 9,967.11/x
  3. Step 3: Cross multiply
    15,555.75x = 21,466.94 × 9,967.11
  4. Step 4: Simplify right side
    15,555.75x = 213,963,302.51
  5. Step 5: Solve for x
    x = 213,963,302.51/15,555.75
  6. Step 6: Final answer
    x = 13,754.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.